Anterior compartment of leg

The anterior compartment of the leg is a fascial compartment of the lower limb. It contains muscles that produce dorsiflexion and participate in inversion and eversion of the foot, as well as vascular and nervous elements including the anterior tibial artery and veins, and the deep fibular nerve.

Anterior compartment of leg
Cross-section through middle of left leg. Anterior compartment is shown left to the tibia.
Arteryanterior tibial artery
Nervedeep fibular nerve
LatinCompartimentum cruris anterius
Anatomical terminology


The muscles of the compartment are:[1]

MuscleProximal AttachmentDistal AttachmentInnervationMain Action
Tibialis anteriorLateral condyle and superior half of lateral surface of tibia and interosseous membraneMedial and inferior surfaces of medial cuneiform and base of 1st metatarsalDeep fibular (peroneal) nerve
(L4, L5)
Dorsiflexes ankle and inverts foot
Extensor digitorum longusLateral condyle of tibia and superior three quarters of medial surface of fibula and interosseous membraneMiddle and distal phalanges of lateral four digitsExtends lateral four digits and dorsiflexes ankle
Extensor hallucis longusMiddle part of anterior surface of fibula and interosseous membraneDorsal aspect of base of distal phalanx of great toe (hallux)Extends great toe and dorsiflexes ankle
Fibularis tertiusInferior third of anterior surface of fibula and interosseous membraneDorsum of base of 5th metatarsalDorsiflexes ankle and aids in eversion of foot


The compartment contains muscles that are dorsiflexors and participate in inversion and eversion of the foot.[2]

Innervation and blood supply

The anterior compartment of the leg is supplied by the deep fibular nerve (deep peroneal nerve), a branch of the common fibular nerve. The nerve contains axons from the L4, L5, and S1 spinal nerves.

Blood for the compartment is supplied by the anterior tibial artery, which runs between the tibialis anterior and extensor digitorum longus muscles. When the artery crosses the flexor retinaculum, it changes its name to dorsalis pedis artery.[3]

See also

Notes and references

  1. Moore, Dally, and Agur (2014). Moore Clinically Oriented Anatomy, Table 5.10, p 591.
  2. antlegdorsalfoot at The Anatomy Lesson by Wesley Norman (Georgetown University)
  3. "Vessels and lympatic drainage of the lower limb". Retrieved 11 January 2015.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.